from airflow import DAG
from airflow.operators.bash import BashOperator
from datetime import datetime, timedelta

with DAG(
    dag_id="sqlserver_clickhouse",
    start_date=datetime(2023, 1, 1),
    schedule="@daily",
    catchup=True,  # Important
    max_active_runs=1,  # Process one date at a time
):

    run_pipeline = BashOperator(
        task_id="run_pipeline",
        bash_command="""
        cd /opt/airflow/project &&
        uv run main.py {{ ds }}
        """,
        retries=3,
        retry_delay=timedelta(minutes=5),
    )